81689600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{3191}}^1$

素因数の和:3221

約数の個数: 66

約数和(自身を含む): 202554744

約数和(自身を除く): 120865144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2560, 3191, 3200, 5120, 6382, 6400, 12764, 12800, 15955, 25528, 25600, 31910, 51056, 63820, 79775, 102112, 127640, 159550, 204224, 255280, 319100, 408448, 510560, 638200, 816896, 1021120, 1276400, 1633792, 2042240, 2552800, 3267584, 4084480, 5105600, 8168960, 10211200, 16337920, 20422400, 40844800, 81689600]

約数ペア:

[(1, 81689600), (2, 40844800), (4, 20422400), (5, 16337920), (8, 10211200), (10, 8168960), (16, 5105600), (20, 4084480), (25, 3267584), (32, 2552800), (40, 2042240), (50, 1633792), (64, 1276400), (80, 1021120), (100, 816896), (128, 638200), (160, 510560), (200, 408448), (256, 319100), (320, 255280), (400, 204224), (512, 159550), (640, 127640), (800, 102112), (1024, 79775), (1280, 63820), (1600, 51056), (2560, 31910), (3191, 25600), (3200, 25528), (5120, 15955), (6382, 12800), (6400, 12764)]